Linked Life Data

8581122

Source:http://linkedlifedata.com/resource/pubmed/id/8581122

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1996-3-21
pubmed:abstractText
Several lignans, mostly new, were isolated from Larrea tridentata by assay-guided counter-current chromatography (CCC). Using the secreted alkaline phosphatase bioassay of HIV Tat transactivation and the two-phase hexane-ethyl acetate-methanol-water solvent system, two major components (Gr and Lo) were identified as anti-HIV active principles. The chemical structures of the constituents of Gr (G1-G4) and Lo (L1-L4) were determined by GC-MS and NMR. After optimization of isolation conditions, a large-scale isolation with the chloroform-methanol-water system yielded five constituents (FB1-FB5). The most predominant anti-HIV compound FB2 (denoted Malachi 4:5-6 or mal.4), which occurs in 0.23% yield, was separated from its FB1 isomer (0.13% yield). Compound FB4 and two tricyclic lignans (FB3 and FB5) were also isolated in a substantial amount for further testing of their anti-HIV activities. These compounds may represent a new class of anti-HIV agents with important clinical relevance.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0021-9673
pubmed:author
pubmed:issnType
Print
pubmed:day
8
pubmed:volume
719
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
353-64
pubmed:dateRevised
2009-1-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Isolation of anti-HIV-1 lignans from Larrea tridentata by counter-current chromatography.
pubmed:affiliation
Department of Biology, Johns Hopkins University, Baltimore, MD 21218-2685, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't